Weidmuller SL-MOD-GW Instrukcja Użytkownika Pobierz pdf (Strona 4)

A.4

WAUS Data Products Main Line Catalogue 2013

Active Components

The following table compares the OSI model with Ethernet model.

In addition, some commonly used protocols include Pronet, Ethernet/IP, EPA, EtherCAT, VNET/IP, TC net and

Modbus-IDA, etc.

UDP

User Datagram Protocol

• No point-to-point connection

• Data package without serial number

• No checking message

• Fast transmission rate

• Unreliable data transmission

OSI model TCP/IP model in Ethernet

TCP

Transmission Control Protocol

• Point-to-point connection

• Data package with serial number

• Request, send, receiving check process

• Uses greater bandwidth

• Reliable data transmission

PPP

Point to Point Protocol

• Automatic self conguration

• Multiple network layer protocols

• Looped link detection Initiates

and terminates connections

gracefully

• No transmission rate limitation

Application Layer

Presentation Layer

Session Layer

Transport Layer

Network Layer

Data Link Layer

Physical Layer

Application Layer

(HTTP, HTTPS, FTP, Telnet, SMTP)

Transport Layer

IP Layer

MAC Layer

(HDLC, PPP, IEEE802.3/802.2, FDDL, ATM)

Physical Layer

(IEEE802.3, 802.5 FDDI, E1A/T1A, 232, V.35, V.24)

Ethernet Protocols Description

802.3i 10BASE-T 10 Mbit/s (1.25 MB/s) over twisted pair

802.3j 10BASE-F 10 Mbit/s (1.25 MB/s) over Fiber-Optic

802.3u 100BASE-TX, 100BASE-FX Fast Ethernet at 100 Mbit/s with auto-negotiation

802.3x Full Duplex and flow control; also incorporates DIX framing

802.3z 1000BASE-X Gbit/s Ethernet over Fiber-Optic at 1 Gbit/s (125 MB/s)

802.3ab 1000BASE-T Gbit/s Ethernet over twisted pair at 1 Gbit/s (125 MB/s)

802.3ac

Max frame size extended to 1522 bytes (to allow "Q-tag") The Q-tag includes

802.1Q VLAN information and 802.1p priority information

802.3ae 10 Gbit/s (1,250 MB/s) Ethernet over fiber

802.3af Power over Ethernet (12.95 W)

Ethernet standard IEEE 802.3

IEEE 802.3 is a working group and a collection of IEEE standards produced by the working group dening the physical layer

and data link layer‘s media access control (MAC) of wired Ethernet. This is generally a local area network technology with

some wide area network applications.

The table below shows some of the commonly used 802.3 standards.

Industrial Ethernet Standards

Active Components | Industrial Ethernet Standards

1 2 3 4 5 6 7 8 9 ... 47 48

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